Int 21H, AH=5FH, AL=02H

3.1 and higher

GET REDIRECTION LIST ENTRY

  AX = 5F02h
 BX = zero-based redirection list index
 CX = driver signature
   0000h LANtastic
   4E57h ('NW') NetWare
 DS:SI -> 16-byte buffer for ASCIZ local device name or drive letter followed by colon
 ES:DI -> 128-byte buffer for ASCIZ network name

CF clear if successful
BH = device status
  00h valid
  01h invalid
  02h valid (connected from inside Windows for Workgroups v3.11)
BL = device type
  03h printer
  04h disk drive
CX = user data previously set with AX=5F03h
DS:SI and ES:DI buffers filled
DX,BP destroyed
CF set on error
  AX = error code (01h,12h) (see #01680 at AH=59h/BX=0000h)

This function is passed through to INT 2F/AX=111Eh by the DOS kernel. Error code 12h is returned if BX is greater than the size of the list. Also supported by Banyan VINES, PC-NFS, LANtastic, and 10NET. Supported by LapLink RemoteAccess but returns the local drive letter; the remote drive letter can be obtained with INT 2F/AX=Cxxxh (see INT 2F/AX=C000h“LapLink”). The returned device name may or may not include a colon, depending on the network software

AX=5F03h - INT 2F/AX=111Eh

Text based on Ralf Brown Interrupt List Release 61